US10347530B2 - Method of forming interconnect structure with partial copper plating - Google Patents
Method of forming interconnect structure with partial copper plating Download PDFInfo
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- US10347530B2 US10347530B2 US15/816,973 US201715816973A US10347530B2 US 10347530 B2 US10347530 B2 US 10347530B2 US 201715816973 A US201715816973 A US 201715816973A US 10347530 B2 US10347530 B2 US 10347530B2
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- 238000000034 method Methods 0.000 title claims abstract description 48
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims description 5
- 229910052802 copper Inorganic materials 0.000 title claims description 5
- 239000010949 copper Substances 0.000 title claims description 5
- 238000007747 plating Methods 0.000 title claims description 4
- 239000000758 substrate Substances 0.000 claims abstract description 39
- 229910052751 metal Inorganic materials 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 230000008569 process Effects 0.000 claims description 16
- 230000004888 barrier function Effects 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 6
- 230000009977 dual effect Effects 0.000 claims description 5
- 229920002120 photoresistant polymer Polymers 0.000 claims description 3
- 238000007517 polishing process Methods 0.000 claims description 2
- 238000000151 deposition Methods 0.000 description 8
- 230000008021 deposition Effects 0.000 description 5
- 239000004065 semiconductor Substances 0.000 description 5
- 238000002513 implantation Methods 0.000 description 3
- 238000005240 physical vapour deposition Methods 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
- H01L21/76879—Filling of holes, grooves or trenches, e.g. vias, with conductive material by selective deposition of conductive material in the vias, e.g. selective C.V.D. on semiconductor material, plating
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
- H01L21/283—Deposition of conductive or insulating materials for electrodes conducting electric current
- H01L21/288—Deposition of conductive or insulating materials for electrodes conducting electric current from a liquid, e.g. electrolytic deposition
- H01L21/2885—Deposition of conductive or insulating materials for electrodes conducting electric current from a liquid, e.g. electrolytic deposition using an external electrical current, i.e. electro-deposition
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- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/32115—Planarisation
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
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- H01L21/3212—Planarisation by chemical mechanical polishing [CMP]
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76802—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics
- H01L21/76807—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing by forming openings in dielectrics for dual damascene structures
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- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/7684—Smoothing; Planarisation
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76843—Barrier, adhesion or liner layers formed in openings in a dielectric
- H01L21/76846—Layer combinations
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76841—Barrier, adhesion or liner layers
- H01L21/76871—Layers specifically deposited to enhance or enable the nucleation of further layers, i.e. seed layers
- H01L21/76873—Layers specifically deposited to enhance or enable the nucleation of further layers, i.e. seed layers for electroplating
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- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76838—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the conductors
- H01L21/76877—Filling of holes, grooves or trenches, e.g. vias, with conductive material
- H01L21/7688—Filling of holes, grooves or trenches, e.g. vias, with conductive material by deposition over sacrificial masking layer, e.g. lift-off
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- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/528—Geometry or layout of the interconnection structure
- H01L23/5283—Cross-sectional geometry
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- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/532—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body characterised by the materials
- H01L23/53204—Conductive materials
- H01L23/53209—Conductive materials based on metals, e.g. alloys, metal silicides
- H01L23/53228—Conductive materials based on metals, e.g. alloys, metal silicides the principal metal being copper
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- H01L23/52—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames
- H01L23/522—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body
- H01L23/532—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames including external interconnections consisting of a multilayer structure of conductive and insulating layers inseparably formed on the semiconductor body characterised by the materials
- H01L23/53204—Conductive materials
- H01L23/53209—Conductive materials based on metals, e.g. alloys, metal silicides
- H01L23/53228—Conductive materials based on metals, e.g. alloys, metal silicides the principal metal being copper
- H01L23/53238—Additional layers associated with copper layers, e.g. adhesion, barrier, cladding layers
Definitions
- the present invention relates to semiconductor technology, and more particularly to a method for manufacturing an interconnect structure.
- a conventional process of manufacturing an interconnect structure may include the steps of first forming an opening in a dielectric layer on a substrate, and then depositing a barrier layer and a seed layer on the surface of the dielectric layer and on the surface of the opening. Thereafter, the process may also include depositing a metal layer filling the opening and covering the seed layer disposed on the dielectric layer, and then planarizing the deposited metal layer.
- the present inventors have discovered that a substrate is susceptible to warping when an interconnect structure is manufactured by the conventional manufacturing methods, and the substrate warping may affect the reliability of the interconnect structure.
- the present inventors provide a novel solution for solving the warping problems of a substrate when manufacturing an interconnect structure therein.
- Embodiments of the present invention provide a method for manufacturing an interconnect structure.
- the method includes providing a substrate structure including a substrate and a dielectric layer on the substrate, the dielectric layer has an opening extending to the substrate.
- the method also includes forming a mask layer on at least one portion of the dielectric layer, forming a metal layer filling the opening and covering portions of the dielectric layer not covered by the mask layer, removing the mask layer, and planarizing the metal layer so that an upper surface of a remaining portion of the metal layer is flush with an upper surface of the dielectric layer.
- the dielectric layer includes a first region and a second region spaced apart from each other, the first region having a surface area smaller than a surface area of the second region, and forming the mask layer on the at least one portion of the dielectric layer includes forming the mask layer on a portion of the second region.
- the method further includes, prior to forming the mask layer, forming a barrier layer on the substrate structure, and the mask layer is formed on the barrier layer. In one embodiment, the method also includes, prior to forming the mask layer, forming a seed layer on the barrier layer, and the mask layer is formed on the seed layer.
- forming the metal layer includes an electro-chemical plating process.
- the mask layer includes photoresist.
- the metal layer comprises copper.
- planarizing the metal layer includes a chemical mechanical polishing process.
- the opening includes a single damascene structure. In one embodiment, the opening includes a dual damascene structure.
- FIG. 1 is a simplified flowchart of a method for manufacturing an interconnect structure according to an embodiment of the present invention.
- FIGS. 2 to 6 are cross-sectional views illustrating intermediate stages of an interconnect structure in a manufacturing method according to an embodiment of the present invention.
- Relative terms such as “below” or “above” or “upper” or “lower” or “horizontal” or “Lateral” or “vertical” may be used herein to describe a relationship of one element, layer or region to another element, layer or region as illustrated in the figures. It will be understood that these terms are intended to encompass different orientations of the device in addition to the orientation depicted in the figures.
- Embodiments of the invention are described herein with reference to cross-sectional illustrations that are schematic illustrations of idealized embodiments (and intermediate structures) of the invention.
- the thickness of layers and regions in the drawings may be enlarged relative to other layers and regions for clarity. Additionally, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected.
- embodiments of the invention should not be construed as limited to the particular shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing.
- an implanted region illustrated as a rectangle will, typically, have rounded or curved features and/or a gradient of implant concentration at its edges rather than a discrete change from implanted to non-implanted region.
- a buried region formed by implantation may result in some implantation in the region between the buried region and the surface through which the implantation takes place.
- the regions illustrated in the figures are schematic in nature and their shapes are not intended to illustrate the actual shape of a region of a device and are not intended to limit the scope of the invention.
- the present inventors have studied the problems of substrate warping and found that the metal layer is formed in a blanket deposition on the entire substrate in conventional manufacturing processes, however, for processes that require a very thick layer of metal, an integrated passive device (IPD) process requires a deposition of a metal layer having a thickness of about 5 microns, the deposited metal will have a large stress that may cause warping of the substrate and generate gaps in the metal formed in the opening, thereby affecting the reliability of the interconnect structure.
- IPD integrated passive device
- the present inventors propose a new method that does not require the metal layer to be formed on the entire surface of the substrate, but rather some portions on the surface of the substrate are blocked, that way will reduce the amount of the metal layer formed on the substrate, thereby reducing the stress on the deposited metal layer, reducing the problem of substrate warping, and improving the reliability of the interconnect structure.
- FIG. 1 is a simplified flowchart of a method for manufacturing an interconnect structure according to an embodiment of the present invention.
- FIGS. 2 to 6 are cross-sectional views illustrating intermediate stages of an interconnect structure in a manufacturing method according to an embodiment of the present invention. A method for manufacturing an interconnect structure according to an embodiment of the present invention will be described below with reference to FIGS. 1 and 2 to 6 .
- the substrate structure may include a substrate 201 and a dielectric layer 202 on substrate 201 .
- Dielectric layer 202 includes an opening 203 extending to substrate 201 .
- Substrate 201 may include different devices, such as metal oxide semiconductor (MOS) devices, passive devices, etc.
- MOS metal oxide semiconductor
- Substrate 201 may include a semiconductor layer (e.g., silicon, germanium, gallium arsenide, and the like) and a device layer on the semiconductor layer.
- opening 203 may include an opening of a single damascene structure.
- opening 203 may include an opening of a dual damascene structure.
- FIG. 2 schematically shows opening 203 of a dual damascene structure including a trench extending into dielectric layer 202 and a via below the trench and extending to substrate 201 .
- the via may include two or more through holes.
- opening 203 can be formed using conventional damascene processes that are compatible with existing semiconductor fabrication processes and will not be described herein for the sake of brevity.
- a mask layer 303 is formed on at least one portion of dielectric layer 202 .
- mask layer 303 may be formed on a portion of dielectric layer 202 , or mask layer 303 may be formed on the entire surface of dielectric layer 202 .
- mask layer 303 may include, but not limited to, a photoresist.
- dielectric layer 202 may include a first region 212 and a second region 222 that are spaced apart from each other, the surface area of first region 212 is smaller than the surface area of second region 222 .
- mask layer 303 may be formed only on a portion of second region 222 .
- dielectric layer 202 may include a plurality of regions having different surface areas.
- mask layer 303 may be formed only on regions of dielectric layer 202 having a relatively large surface areas, i.e., mask layer 303 may not be formed on regions of dielectric layer 202 having relatively small surface areas.
- a relatively small surface area is defined as a surface area that is 10% to 50% smaller than a relatively large surface area.
- a barrier layer 301 may be formed (e.g., by deposition) on the substrate structure shown in FIG. 2 , so that mask layer 303 is formed on barrier layer 301 .
- barrier layer 301 may include TaN, Ta, or a stack layer of TaN and Ta.
- a seed layer 302 may be formed on barrier layer 301 prior to forming mask layer 303 on at least one portion of dielectric layer 202 , so that mask layer 303 is formed on seed layer 302 .
- Seed layer 302 may include copper.
- barrier layer 301 and seed layer 302 each may be formed using a physical vapor deposition (PVD) process.
- a metal layer 401 is formed (e.g., by deposition) filing opening 203 and disposed on portions of dielectric layer that are not covered by mask layer 303 , as shown in FIG. 4 .
- metal layer 401 may be deposited using an electro-chemical plating (ECP) process.
- ECP electro-chemical plating
- metal layer 401 may include copper.
- mask layer 303 covers at least one portion of the dielectric layer, the surface area of that covered portion of the dielectric layer is relatively large, so that the amount of deposited metal layer 401 is substantially reduced compared to the amount of a conventional blanket-deposited metal layer, thereby reducing the stress in the subsequently formed interconnect structure and improving the reliability of the interconnect structure.
- mask layer 303 is removed, as shown in FIG. 5 .
- Mask layer 303 may be removed, for example, using a stripping process.
- a planarization process e.g., a chemical mechanical polishing (CMP) process
- CMP chemical mechanical polishing
- the planarization process can also remove the portion of seed layer and the portion of the barrier layer on the upper surface portion of the dielectric layer at the same time.
- a mask layer is formed on at least one portion of the dielectric layer to reduce the amount of a subsequently deposited metal layer, the stress in the metal layer is thus reduced, and the warping problem of the substrate is solved, thereby improving the reliability and stability of the interconnect structure.
- the method of the present invention provides the advantages that there is no metal layer deposition on the regions of the dielectric layer that are covered by the mask layer, which facilitates the planarization process and mitigates the planarization issues associated with a warped substrate.
- the manufacturing method of the present invention is particularly well suited for forming a relatively thick metal layer when filling the opening of an interconnect structure.
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Abstract
Description
Claims (14)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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CN201611054718 | 2016-11-25 | ||
CN201611054718.4 | 2016-11-25 | ||
CN201611054718.4A CN108109954B (en) | 2016-11-25 | 2016-11-25 | Method for manufacturing interconnection structure |
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US20180151426A1 US20180151426A1 (en) | 2018-05-31 |
US10347530B2 true US10347530B2 (en) | 2019-07-09 |
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US15/816,973 Active US10347530B2 (en) | 2016-11-25 | 2017-11-17 | Method of forming interconnect structure with partial copper plating |
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CN107591357B (en) * | 2016-07-07 | 2020-09-04 | 中芯国际集成电路制造(北京)有限公司 | Interconnect structure and method of making the same |
DE102019202061A1 (en) | 2019-02-15 | 2020-08-20 | Te Connectivity Germany Gmbh | Cable and method of making the cable |
Citations (6)
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EP1020905A1 (en) | 1999-01-12 | 2000-07-19 | Lucent Technologies Inc. | Integrated circuit device having dual damascene interconnect structure and metal electrode capacitor and associated method for making |
US6140234A (en) * | 1998-01-20 | 2000-10-31 | International Business Machines Corporation | Method to selectively fill recesses with conductive metal |
US6162728A (en) | 1998-12-18 | 2000-12-19 | Texas Instruments Incorporated | Method to optimize copper chemical-mechanical polishing in a copper damascene interconnect process for integrated circuit applications |
JP2011258839A (en) | 2010-06-10 | 2011-12-22 | Fujitsu Ltd | Method of forming wiring structure and wiring structure |
US20150108602A1 (en) * | 2013-10-22 | 2015-04-23 | Samsung Electronics Co., Ltd. | Semiconductor device including fuse structure |
US9779989B1 (en) * | 2016-05-30 | 2017-10-03 | United Microelectronics Corp. | Method for manufacturing metal interconnects |
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2017
- 2017-11-17 US US15/816,973 patent/US10347530B2/en active Active
- 2017-11-22 EP EP17202999.3A patent/EP3327761A1/en not_active Withdrawn
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US6140234A (en) * | 1998-01-20 | 2000-10-31 | International Business Machines Corporation | Method to selectively fill recesses with conductive metal |
US6162728A (en) | 1998-12-18 | 2000-12-19 | Texas Instruments Incorporated | Method to optimize copper chemical-mechanical polishing in a copper damascene interconnect process for integrated circuit applications |
EP1020905A1 (en) | 1999-01-12 | 2000-07-19 | Lucent Technologies Inc. | Integrated circuit device having dual damascene interconnect structure and metal electrode capacitor and associated method for making |
US6346454B1 (en) * | 1999-01-12 | 2002-02-12 | Agere Systems Guardian Corp. | Method of making dual damascene interconnect structure and metal electrode capacitor |
JP2011258839A (en) | 2010-06-10 | 2011-12-22 | Fujitsu Ltd | Method of forming wiring structure and wiring structure |
US20150108602A1 (en) * | 2013-10-22 | 2015-04-23 | Samsung Electronics Co., Ltd. | Semiconductor device including fuse structure |
US9779989B1 (en) * | 2016-05-30 | 2017-10-03 | United Microelectronics Corp. | Method for manufacturing metal interconnects |
Non-Patent Citations (1)
Title |
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European Patent Application No. 17202999.3, Extended European Search Report dated Apr. 19, 2018, 7 pages. |
Also Published As
Publication number | Publication date |
---|---|
EP3327761A1 (en) | 2018-05-30 |
CN108109954B (en) | 2021-04-23 |
US20180151426A1 (en) | 2018-05-31 |
CN108109954A (en) | 2018-06-01 |
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